Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:
  1. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser !
  3. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  4. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Namemps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-air03.opb
MD5SUM45da6faf70c895e4acc43dda6a83b925
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 234457
Optimality of the best value was proved NO
Number of terms in the objective function 10757
Biggest coefficient in the objective function 6873
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 13748961
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 6873
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 13748961
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.25
Number of variables10757
Total number of constraints10881
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10881
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint3861

Trace number 9951

Launcher Data

LAUNCH ON wulflinc14 THE 2005-09-23 16:15:24 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8700 boxname=wulflinc14 idbench=496 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  45da6faf70c895e4acc43dda6a83b925  /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-20-10-air03.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-20-10-air03.opb
IDLAUNCH: 8700
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.058
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.058
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        987512 kB
Buffers:          2004 kB
Cached:          27780 kB
SwapCached:          0 kB
Active:          19276 kB
Inactive:        13384 kB
HighTotal:      131008 kB
HighFree:        99008 kB
LowTotal:       903652 kB
LowFree:        888504 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8804 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:17:12 (client local time) WITH STATUS 1 IN 107.861 SECONDS
stats: 8700 7 107.861 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 291404
c big objective detected
c trying from 0 to 511

	Unexpected exception :
	St9bad_alloc

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/8113/stat): 8113 (pb2sat) R 8112 8113 4060 0 -1 0 18 0 0 0 0 0 0 0 19 0 1 0 21550030 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8113/statm): 373 2 364 364 0 9 0
[pid=8113] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-20-10-air03.opb

[startup+10.0023 s]
Raw data (loadavg): 0.98 0.95 0.97 2/55 8113
Raw data (/proc/8113/stat): 8113 (pb2sat) R 8112 8113 4060 0 -1 0 13478 0 0 0 961 36 0 0 25 0 1 0 21550030 43196416 7917 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8113/statm): 10546 7917 364 364 0 10182 0
[pid=8113] vsize: 42184
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 42184

[startup+20.003 s]
Raw data (loadavg): 0.98 0.95 0.97 2/55 8113
Raw data (/proc/8113/stat): 8113 (pb2sat) R 8112 8113 4060 0 -1 0 34383 0 0 0 1908 87 0 0 25 0 1 0 21550030 135831552 22599 4294967295 134512640 135987407 3221224560 3219536048 134856502 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8113/statm): 33162 22599 364 364 0 32798 0
[pid=8113] vsize: 132648
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 132648

[startup+30.0037 s]
Raw data (loadavg): 0.98 0.95 0.97 2/55 8113
Raw data (/proc/8113/stat): 8113 (pb2sat) R 8112 8113 4060 0 -1 0 64847 0 0 0 2838 154 0 0 25 0 1 0 21550030 199651328 41872 4294967295 134512640 135987407 3221224560 3217975520 134887784 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8113/statm): 48743 41872 364 364 0 48379 0
[pid=8113] vsize: 194972
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 194972

[startup+40.0034 s]
Raw data (loadavg): 0.99 0.95 0.97 2/55 8113
Raw data (/proc/8113/stat): 8113 (pb2sat) R 8112 8113 4060 0 -1 0 106283 0 0 0 3754 236 0 0 25 0 1 0 21550030 328282112 61090 4294967295 134512640 135987407 3221224560 3220605392 134559982 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8113/statm): 80147 61090 364 364 0 79783 0
[pid=8113] vsize: 320588
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 320588

[startup+50.005 s]
Raw data (loadavg): 0.99 0.95 0.97 2/55 8113
Raw data (/proc/8113/stat): 8113 (pb2sat) R 8112 8113 4060 0 -1 0 124086 0 0 0 4716 272 0 0 25 0 1 0 21550030 387923968 78650 4294967295 134512640 135987407 3221224560 3220870128 134537531 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8113/statm): 94708 78650 364 364 0 94344 0
[pid=8113] vsize: 378832
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 378832

[startup+60.0057 s]
Raw data (loadavg): 0.99 0.95 0.97 2/55 8113
Raw data (/proc/8113/stat): 8113 (pb2sat) R 8112 8113 4060 0 -1 0 167102 0 0 0 5624 359 0 0 25 0 1 0 21550030 527896576 102041 4294967295 134512640 135987407 3221224560 3220521248 134878632 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8113/statm): 128881 102041 364 364 0 128517 0
[pid=8113] vsize: 515524
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 515524

[startup+70.0064 s]
Raw data (loadavg): 0.99 0.96 0.97 2/55 8113
Raw data (/proc/8113/stat): 8113 (pb2sat) R 8112 8113 4060 0 -1 0 191155 0 0 0 6569 411 0 0 25 0 1 0 21550030 755855360 125845 4294967295 134512640 135987407 3221224560 3218583344 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8113/statm): 184535 125849 364 364 0 184171 0
[pid=8113] vsize: 738140
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 738140

[startup+80.007 s]
Raw data (loadavg): 0.99 0.96 0.97 2/55 8113
Raw data (/proc/8113/stat): 8113 (pb2sat) R 8112 8113 4060 0 -1 0 226247 0 0 0 7494 484 0 0 25 0 1 0 21550030 679383040 136136 4294967295 134512640 135987407 3221224560 3219463084 135499903 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8113/statm): 165865 136136 364 364 0 165501 0
[pid=8113] vsize: 663460
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 663460

[startup+90.0067 s]
Raw data (loadavg): 0.99 0.96 0.97 2/55 8113
Raw data (/proc/8113/stat): 8113 (pb2sat) R 8112 8113 4060 0 -1 0 241527 0 0 0 8459 517 0 0 25 0 1 0 21550030 735510528 151206 4294967295 134512640 135987407 3221224560 3217624880 134856587 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8113/statm): 179568 151206 364 364 0 179204 0
[pid=8113] vsize: 718272
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 718272

[startup+100.007 s]
Raw data (loadavg): 0.99 0.96 0.97 2/55 8113
Raw data (/proc/8113/stat): 8113 (pb2sat) R 8112 8113 4060 0 -1 0 260812 0 0 0 9412 560 0 0 25 0 1 0 21550030 766599168 170244 4294967295 134512640 135987407 3221224560 3219353456 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8113/statm): 187158 170245 364 364 0 186794 0
[pid=8113] vsize: 748632
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 748632
One traced child (pid=8113) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 108.136
CPU time (s): 107.861
CPU user time (s): 101.875
CPU system time (s): 5.98609
CPU usage (%): 99.7458
Max. virtual memory (cumulated for all children) (Kb): 748632

Verifier Data

ERROR: no interpretation found !